topic Re: How to create a structure in a method in Application Development and Automation Discussions

How to create a structure in a method

Former Member — Wed, 01 Nov 2006 04:43:30 GMT

Would any please tell me how to delcare a structure in a method which contains a SAP defined structre in it . I have done it in normal ABAP but it not taking that syntax in ABAP objects method . Please tell me syntax for a method .

Thanks

Anita

Re: How to create a structure in a method

uwe_schieferstein — Wed, 01 Nov 2006 05:17:30 GMT

Hello Anita

I assume you tried the statement

DATA: begin of <struct>.
...

In methods we have to use the following approach:

TYPES: begin of ty_s_struc.
TYPES:   field1   TYPE <fieldname>.
TYPES:   field2   TYPE <struct-fieldname>.
TYPES:   ...
TYPES: end of ty_s_struc.
DATA:
  ls_struc     TYPE ty_s_struc,
  lt_itab      TYPE STANDARD TABLE OF ty_s_struc
               WITH DEFAULT KEY.

I prefer to place my type definition in the "TYPES section" (see push button "Types" in SE24). However, all types defined within your class are <b>private</b> meaning you cannot use them in the interface of public methods.

Regards

Uwe

Re: How to create a structure in a method

Former Member — Wed, 01 Nov 2006 05:35:49 GMT

Hi Uwe ,

Thanks for your help I will try it out .

Thanks

Anita

Re: How to create a structure in a method

uwe_schieferstein — Wed, 01 Nov 2006 06:07:09 GMT

Hello Anita

You may have wondered why I used the option

... WITH DEFAULT KEY.

The reason for that is that I sometimes got an syntax error saying "...generic type cannot be used..." when I defined my data variables. This syntax error never occurs with the added option.

Regards

Uwe

PS: There is no need to use TYPES: ... for each single field in your structure. However, I am sometimes old-fashioned in the sense: single line -> single statement.